Source - SBAS Service Providers
Scope of this note
This note is the knowledge base’s institutional source-family anchor for SBAS service-provider definitions, service commitments, coverage, and system status.
Service-provider material is distinct from:
- airborne-equipment MOPS (handled by Source - RTCA DO-229);
- article/equipment approval (handled by Source - FAA TSO-C145e and TSO-C146e and Source - EASA ETSO-C145e and ETSO-C146e);
- procedure-design material (handled by Source - ICAO PANS-OPS Doc 8168 and Doc 9613 PBN Manual and Source - FAA and EASA Procedure-Design and PBN Material);
- ICAO SARPs (handled by Source - ICAO Annex 10 Volume I GNSS SBAS);
- operational approval, AIP/procedure publication, and crew/operator authorization (covered by regulator/ANSP/AIP material).
This note does not provide comparative performance tables, availability percentages, uptime statistics, or coverage maps. Those require official service-provider documents, performance reports, and service definitions.
Important boundary:
- Public service-provider metadata can support system identity, operating agency, service type, and broad scope.
- It cannot support numerical availability figures, coverage boundaries, or comparative performance rankings.
- Use this note for service-provider routing and to keep service-commitment claims separate from equipment, article-approval, and procedure-design claims.
SBAS service-provider identity signals (public sources)
WAAS — United States
||| Field | Current public signal | |||---|---| ||| System | Wide Area Augmentation System (WAAS) | ||| Operating agency | Federal Aviation Administration (FAA), U.S. Department of Transportation | ||| Dedicated source note | Source - WAAS | ||| Verified extraction status | Official FAA WAAS public page and FAA August 2025 WAAS quick-facts PDF extracted | ||| Core verified signal | FAA public material describes WAAS as serving all classes of aircraft in all phases of flight and supporting vertically guided approaches at qualified NAS locations | ||| Boundary | Real-time status, service-volume limits, aircraft/operator authorization, and runway-specific procedure minima require FAA status/performance/AIP/procedure sources |
EGNOS — Europe
||| Field | Current public signal | |||---|---| ||| System | European Geostationary Navigation Overlay Service (EGNOS) | ||| Operating agency | European Union / EUSPA context; ESSP SAS service-provider signal in extracted SDD summary | ||| Dedicated source note | Source - EGNOS | ||| Verified extraction status | Official EGNOS Safety of Life Service Definition Document page and in-force Issue 3.6 PDF extracted | ||| Core verified signal | Official EGNOS material describes the aviation SoL service as openly provided, freely accessible without direct charge, tailored to safety-critical aviation applications, and compliant with APV-I/CAT-I precision-approach requirements as defined by ICAO Annex 10 | ||| Boundary | Country-specific authorization, AIP procedure publication, receiver approval, Open Service/EDAS/ESMAS claims, and live performance values require separate official sources |
MSAS — Japan
|| Field | Current public signal | ||---|---| || System | MSAS / Michibiki Satellite-based Augmentation Service context | || Operating agency | MLIT / JCAB for aviation SBAS signal generation and authorization context; QZSS provides satellite transmission service | || Dedicated source note | Source - MSAS | || Verified extraction status | Official QZSS SBAS Transmission Service page and ICAO APAC CNS SG/24 IP15 extracted | || Core verified signal | MSAS operated with MTSAT from 27 September 2007 and transitioned to QZS-3/QZSS GEO transmission by March/April 2020 | || Boundary | Current post-2023 LPV operational status and airport-specific procedure availability still require later JCAB/MLIT/QZSS/AIP extraction |
GAGAN — India
|| Field | Current public signal | ||---|---| || System | GPS Aided GEO Augmented Navigation (GAGAN) | || Operating agency | Airports Authority of India (AAI) and Indian Space Research Organisation (ISRO); DGCA India certification signal in ITF/7 IP05b | || Dedicated source note | Source - GAGAN SBAS Operation | || Verified extraction status | ICAO APAC ITF/7 IP05b and AAI public GEO-satellite FAQ extracted | || Core verified signal | RNP 0.1 operational certification in 2013 for Indian FIRs; APV I in 2015 for Indian landmass; 23 LPV procedures at 15 airports as of May 2025 | || Boundary | Procedure minima, exact service performance, and operational authorization details still require DGCA/AAI/AIP extraction |
BDSBAS — China
||| Field | Current public signal | |||---|---| ||| System | BeiDou Satellite-Based Augmentation System (BDSBAS) | ||| Operating agency | China Satellite Navigation Office / BeiDou system context for the official BDSBAS-B1C ICD | ||| Dedicated source note | Source - BDSBAS | ||| Verified extraction status | Official BDSBAS-B1C Signal In Space Interface Control Document extracted; NAVIGATION 2021 article used only as secondary technical-public context | ||| Core verified signal | Official ICD defines BDSBAS-B1C Single Frequency service signal/interface characteristics and identifies GEO PRNs 144, 143, and 130 | ||| Boundary | Current CAAC aviation operational approval, service declaration, APV/CAT procedure availability, and approach minima remain unverified without aviation-regulator/service-definition sources |
KASS — South Korea
||| Field | Current public signal | |||---|---| ||| System | Korea Augmentation Satellite System (KASS) | ||| Operating agency | MOLIT/KARI/KANSC context from KARI and ICAO APAC ITF/5 material | ||| Dedicated source note | Source - KASS | ||| Verified extraction status | Official KARI KASS page, ICAO APAC ITF/5 IP/09, and bounded contractor-public certification announcement extracted | ||| Core verified signal | ICAO APAC material identifies Service Provider ID 6, PRN 134, MOLIT/KARI/KANSC roles, and GPS L1/APV-I/Incheon FIR planning context; KARI material gives current Korean system/architecture context | ||| Boundary | Korean AIP procedure availability, runway minima, current second-GEO status, and final operational authorization require Korean regulator/provider/AIP extraction |
SouthPAN — Australia and New Zealand
||| Field | Current public signal | |||---|---| ||| System | Southern Positioning Augmentation Network (SouthPAN) | ||| Operating agency | Geoscience Australia and Toitū Te Whenua Land Information New Zealand | ||| Dedicated source note | Source - SouthPAN | ||| Verified extraction status | Official SouthPAN FAQ, early Open Services factsheet, and Signal-In-Space Open Services service-definition document extracted | ||| Core verified signal | Early Open Services available since September 2022; service families L1 SBAS, DFMC SBAS, PVS, and Data Access Services; PRN 122; Safety-of-Life aviation service target 2028 | ||| Boundary | Early Open Services are not certified aviation Safety-of-Life services; LPV/procedure/approval claims require later certified-service and AIP/regulator extraction |
SDCM — Russia / GLONASS augmentation context
||| Field | Current public signal | |||---|---| ||| System | System of Differential Corrections and Monitoring (SDCM) | ||| Operating agency / source family | Russian / GLONASS institutional context from GLONASS IAC and historical ICAO material | ||| Dedicated source note | Source - SDCM | ||| Verified extraction status | GLONASS IAC system-documents page, GLONASS OS PS Edition 2.2, ICAO A37-WP/195, and bounded public comparator material reviewed | ||| Core verified signal | GLONASS OS PS material places SDCM in GLONASS-based-system certification context; ICAO A37-WP/195 identifies SDCM as a GLONASS SBAS development path | ||| Boundary | Current aviation operational service, AIP procedure availability, service-volume commitments, and performance status remain unverified without current Russian service-provider/regulator/AIP evidence |
What this source-family can currently anchor
Until direct extraction from official service-provider documents is performed, this note can support broad routing statements such as:
- Each SBAS system has a distinct operating agency, service area, and service-delivery model.
- Service commitments, coverage, availability, and system status are provider-specific and must be verified against official service-provider documents.
- Comparative performance claims across SBAS systems require verified service-provider data, not assumptions from equipment standards or generic SBAS concept pages.
What this source-family must not be used for yet
Do not use this note alone to publish:
- comparative availability or uptime statistics across SBAS systems;
- exact coverage boundaries or service-area maps;
- numerical positioning accuracy or integrity performance figures;
- any claim that one SBAS system is superior to another without verified comparative data;
- interoperability claims without official bilateral/multilateral service-provider agreements.
Relationship to other source notes in this knowledge base
| Claim type | Equipment source | Service-provider source | Procedure-design source | Article-approval source |
|---|---|---|---|---|
| SBAS system identity | — | This note | — | — |
| SBAS coverage | — | This note (needs extraction) | — | — |
| SBAS availability | — | This note (needs extraction) | — | — |
| Airborne SBAS equipment | Source - RTCA DO-229 | — | — | Source - FAA TSO-C145e and TSO-C146e / Source - EASA ETSO-C145e and ETSO-C146e |
| LPV procedure | — | This note (service availability) | Source - ICAO PANS-OPS Doc 8168 and Doc 9613 PBN Manual | — |
| Operational approval | — | — | Source - FAA and EASA Procedure-Design and PBN Material | Regulator-specific |
Downstream pages to connect
- SBAS Standards Source Matrix
- SBAS Source Backlog
- WAAS
- EGNOS
- MSAS
- GAGAN
- BDSBAS
- KASS
- SouthPAN
- SDCM
- Source - WAAS
- Source - EGNOS
- Source - BDSBAS
- Source - KASS
- Source - SDCM
- SBAS Operational Validation Dashboard
- WAAS vs EGNOS
- MSAS vs GAGAN
- SBAS-Systems-by-Region-MOC
- SBAS in Civil Aviation MOC
Extraction template for future direct-source cycles
WAAS required
- Direct-text extraction of FAA WAAS service definition and scope
- Real-time status page signals for availability claims
- Cross-check against Source - FAA TSO-C145e and TSO-C146e for FAA-specific SBAS context
EGNOS required
- Direct-text extraction of EUSPA/ESA EGNOS service definition
- Safety of Life service declaration and certification basis
- Cross-check against Source - EASA ETSO-C145e and ETSO-C146e for EASA-specific SBAS context
Other systems required
- WAAS: FAA WAAS public page and FAA August 2025 quick-facts PDF extracted into Source - WAAS; real-time status, service-volume boundaries, runway-specific procedure availability, and operational authorization still require FAA status/performance/AIP/procedure sources.
- EGNOS: official EGNOS Safety of Life Service Definition Document page and Issue 3.6 PDF extracted into Source - EGNOS; country-specific authorization, AIP publication, and live performance/status evidence still require additional EGNOS/ANSP/regulator sources.
- MSAS: QZSS service page and ICAO APAC CNS SG/24 IP15 extracted into Source - MSAS; current post-2023 LPV operational status still needs later JCAB/MLIT/QZSS/AIP extraction.
- GAGAN: ICAO APAC ITF/7 IP05b and AAI GEO-satellite FAQ extracted into Source - GAGAN SBAS Operation; exact service performance and procedure minima still need DGCA/AAI/AIP extraction.
- BDSBAS: official BDSBAS-B1C ICD extracted into Source - BDSBAS; CAAC/service-declaration/procedure evidence still required before aviation-operational claims.
- KASS: KARI official page, ICAO APAC ITF/5 IP/09, and bounded contractor-public certification material extracted into Source - KASS; Korean regulator/AIP/service-performance sources still required before runway/procedure operational claims.
- SouthPAN: Geoscience Australia/LINZ open-service and Signal-In-Space service-definition material extracted into Source - SouthPAN; certified Safety-of-Life/AIP material still required before aviation-operational claims.
- SDCM: GLONASS IAC system-documents page, GLONASS OS PS Edition 2.2, ICAO A37-WP/195, and bounded public comparator material reviewed into Source - SDCM; current Russian SDCM service-definition, regulator/AIP, and performance evidence still required before operational aviation claims.